Config ISP Modem D-Link Wireless Router ? Local Network: o IP = 192.168.0.1 o DNS = ISP DNS + 192.168.0.3 (Server IP) o DHCP activate o DNS not activate ? WAN = ISP information PROLIAN Server ? Windows 2003 Standard Edition ? IP Static = 192.168.0.3 ? Gateway = 192.168.0.1 ? DNS = ISP info ? Active Directory installed ? Domain controller installed WinXP Clients ? IP = Automatic ? DNS Static = 192.168.0.3 TOPOLOGY The ISP modem is linked to the WAN port of the D-Link. The LAN port of the D-Link is connected to the Swich with the other computers of the network (Server + XP Clients). The D-Link is operating as a router, a wireless access point and DHCP server. The PROLIAN Server is running as a DNS server. Actually, the first topology is the one running. I sometime (not often) having some problem when a client connect to the domain at the start up, with the message: The Domain is not available. What can be the problem ? How Can I improve the system configuration?

Is that a wireless client that is getting that message? The connection process starts when the user logs in and can take a little time. http://www.itnewsgroups.net/group/m... Read the thread at the above site. ^

for starters, I'd point the servers DNS address towards itself, so it can resolve dns on the internal network. currently what is occuring is when your servers whats to resolve DNS, its going to the ISP for resolution, failing cos mycomputer.local dont exist on the internet and then trying to resolve computer names using a different protocol. As Guapo said above, wireless clients can be an issue sometimes with a delay in connecting. Might be worth upgrading the drivers for the wireless cards and also checking there for a setting such as "fast connect" that might be available on the wireless network card. The server should be able to resolve DNS for web sites without having the ISP's dns server addresses in its dns entires, however if for some reason the lookup records arn't working on the server, then you can add a DNS forwarder of the ISP's dns servers in the properties tab of the DNS servers DNS service... Microsoft Arctile http://support.microsoft.com/kb/323380 explains all DNS stuff and how to configure forwarders if needed. Matt Hudski